Where you live shouldn't decide which cancer trials you can join.

The Cancer Clinical Trial Access Map measures, in road miles, how far Americans live from recruiting cancer clinical trials, by county, congressional district and state, and shows what would change it. About 11.8 million Americans aged 55 and older have fewer than 20 recruiting cancer treatment trials within 60 road-miles of home.

Open the map Key findings Trials near a ZIP

Data as of the latest weekly refresh · ClinicalTrials.gov, Census Bureau, NCI

Map of US counties, each with a circle sized by the number of residents 55 and older who have fewer than 20 recruiting cancer treatment trials within 60 road-miles of home; NCI-designated cancer centers marked — Residents 55 and older short of trials, by county. Circles are sized by people, so the gaps that matter most are the ones you see first.

11.8million

Americans 55+ with fewer than 20 recruiting cancer trials within 60 road-miles

11.8% of residents 55 and older

4.3million

have no recruiting cancer trial at all within 60 road-miles

4.3% of residents 55 and older

43%

of rural (nonmetro) residents 55+ are short of trials, against 6% in metro counties

USDA rural-urban classification

4,035

recruiting cancer treatment trials with a US site, at 9,655 facilities

Refreshed weekly from ClinicalTrials.gov

Start where you are

The same data, three doors. Every page shows its sources and the date of the data it uses.

Patients & families

What a trial is, which ones are listed near you, and what to ask your care team.

Advocates & Congress

District-level numbers, the bills that would help, and a brief you can hand to a staffer.

Research & methods

Definitions, validation, and the code and data behind every number.

What this is

The Cancer Clinical Trial Access Map is an independent research project on where cancer care reaches and where it doesn't, built by Neha Agrawal, MD, a medical oncologist. It measures access to recruiting cancer clinical trials the way a patient experiences it: in road miles from home, not in counts per state.

The map is built entirely from public data, refreshed weekly, and checked against the live registry and independent routing. Everything it reports can be traced to its source. Read more about the project, how it is built, and how to cite it.

How it is built

Trials.: ClinicalTrials.gov: recruiting, interventional cancer treatment trials with a US site, open to some adults 55 or older.
People.: Census tract centroids and ACS population, so distance is measured from where people actually live.
Distance.: Shortest route on the highway network, in road miles; compared against independent routing.
Policy.: Congressional districts, members and cosponsors from public records.

Agrawal N. Cancer Clinical Trial Access Map (beta). https://cancertrialaccess.org/